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Crystal Lake water is tested on a yearly basis.
The most updated testing is shown below.
As reference, drinking water should be 0 colonies per 100 milliliters. The limit for swimming in a lake, stream or river is 235 colonies per 100 ml. We are nowhere near this level. Click or tap on the link below to see the results.
2025 Crystal Lake Water Testing
2024 Crystal Lake Water Testing
2023 Crystal Lake Water Testing
2022 Crystal Lake Water Testing
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